Module Stdlib.Nativeint

Contents

Instructions: Use this module in your project

In the IDE (CLion, Visual Studio Code, Xcode, etc.) you use for your DkSDK project:

  1. Add the following to your project's dependencies/CMakeLists.txt:

    Copy
    DkSDKProject_DeclareAvailable(ocaml
        CONSTRAINT "= 4.14.0"
        FINDLIBS str unix runtime_events threads dynlink)
    DkSDKProject_MakeAvailable(ocaml)
  2. Add the Findlib::ocaml library to any desired targets in src/*/CMakeLists.txt:

    Copy
    target_link_libraries(YourPackage_YourLibraryName
         # ... existing libraries, if any ...
         Findlib::ocaml)
  3. Click your IDE's Build button

Not using DkSDK?

FIRST, do one or all of the following:

  1. Run:

    Copy
    opam install ocaml.4.14.0
  2. Edit your dune-project and add:

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    (package
      (name YourExistingPackage)
      (depends
      ; ... existing dependenices ...
      (ocaml (>= 4.14.0))))

    Then run:

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    dune build *.opam # if this fails, run: dune build
  3. Edit your <package>.opam file and add:

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    depends: [
      # ... existing dependencies ...
      "ocaml" {>= "4.14.0"}
    ]

    Then run:

    Copy
    opam install . --deps-only

FINALLY, add the library to any desired (library)and/or (executable) targets in your **/dune files:

Copy
(library
  (name YourLibrary)
  ; ... existing library options ...
  (libraries
    ; ... existing libraries ...
    ))

(executable
  (name YourExecutable)
  ; ... existing executable options ...
  (libraries
    ; ... existing libraries ...
    ))
val zero : nativeint

The native integer 0.

val one : nativeint

The native integer 1.

val minus_one : nativeint

The native integer -1.

valneg : ``nativeint-> nativeint

Unary negation.

valadd : ``nativeint->``nativeint-> nativeint

Addition.

valsub : ``nativeint->``nativeint-> nativeint

Subtraction.

valmul : ``nativeint->``nativeint-> nativeint

Multiplication.

valdiv : ``nativeint->``nativeint-> nativeint

Integer division. This division rounds the real quotient of its arguments towards zero, as specified for [Stdlib.(/)](../<stdlib/#val-( )="">).

  • raises Division_by_zero

    if the second argument is zero.

</stdlib.html#val-(>

valunsigned_div : ``nativeint->``nativeint-> nativeint

Same as div, except that arguments and result are interpreted as unsigned native integers.

  • since 4.08.0
valrem : ``nativeint->``nativeint-> nativeint

Integer remainder. If y is not zero, the result of Nativeint.rem x y satisfies the following properties: Nativeint.zero <= Nativeint.rem x y < Nativeint.abs y and x = Nativeint.add (Nativeint.mul (Nativeint.div x y) y) (Nativeint.rem x y). If y = 0, Nativeint.rem x y raises Division_by_zero.

valunsigned_rem : ``nativeint->``nativeint-> nativeint

Same as rem, except that arguments and result are interpreted as unsigned native integers.

  • since 4.08.0
valsucc : ``nativeint-> nativeint

Successor. Nativeint.succ x is Nativeint.add x Nativeint.one.

valpred : ``nativeint-> nativeint

Predecessor. Nativeint.pred x is Nativeint.sub x Nativeint.one.

valabs : ``nativeint-> nativeint

Return the absolute value of its argument.

val size : int

The size in bits of a native integer. This is equal to 32 on a 32-bit platform and to 64 on a 64-bit platform.

val max_int : nativeint

The greatest representable native integer, either 231 - 1 on a 32-bit platform, or 263 - 1 on a 64-bit platform.

val min_int : nativeint

The smallest representable native integer, either -231 on a 32-bit platform, or -263 on a 64-bit platform.

vallogand : ``nativeint->``nativeint-> nativeint

Bitwise logical and.

vallogor : ``nativeint->``nativeint-> nativeint

Bitwise logical or.

vallogxor : ``nativeint->``nativeint-> nativeint

Bitwise logical exclusive or.

vallognot : ``nativeint-> nativeint

Bitwise logical negation.

valshift_left : ``nativeint->``int-> nativeint

Nativeint.shift_left x y shifts x to the left by y bits. The result is unspecified if y < 0 or y >= bitsize, where bitsize is 32 on a 32-bit platform and 64 on a 64-bit platform.

valshift_right : ``nativeint->``int-> nativeint

Nativeint.shift_right x y shifts x to the right by y bits. This is an arithmetic shift: the sign bit of x is replicated and inserted in the vacated bits. The result is unspecified if y < 0 or y >= bitsize.

valshift_right_logical : ``nativeint->``int-> nativeint

Nativeint.shift_right_logical x y shifts x to the right by y bits. This is a logical shift: zeroes are inserted in the vacated bits regardless of the sign of x. The result is unspecified if y < 0 or y >= bitsize.

valof_int : ``int-> nativeint

Convert the given integer (type int) to a native integer (type nativeint).

valto_int : ``nativeint-> int

Convert the given native integer (type nativeint) to an integer (type int). The high-order bit is lost during the conversion.

valunsigned_to_int : ``nativeint-> ``int option

Same as to_int, but interprets the argument as an unsigned integer. Returns None if the unsigned value of the argument cannot fit into an int.

  • since 4.08.0
valof_float : ``float-> nativeint

Convert the given floating-point number to a native integer, discarding the fractional part (truncate towards 0). If the truncated floating-point number is outside the range [Nativeint.min_int, Nativeint.max_int], no exception is raised, and an unspecified, platform-dependent integer is returned.

valto_float : ``nativeint-> float

Convert the given native integer to a floating-point number.

valof_int32 : ``int32-> nativeint

Convert the given 32-bit integer (type int32) to a native integer.

valto_int32 : ``nativeint-> int32

Convert the given native integer to a 32-bit integer (type int32). On 64-bit platforms, the 64-bit native integer is taken modulo 232, i.e. the top 32 bits are lost. On 32-bit platforms, the conversion is exact.

valof_string : ``string-> nativeint

Convert the given string to a native integer. The string is read in decimal (by default, or if the string begins with 0u) or in hexadecimal, octal or binary if the string begins with 0x, 0o or 0b respectively.

The 0u prefix reads the input as an unsigned integer in the range [0, 2*Nativeint.max_int+1]. If the input exceeds Nativeint.max_int it is converted to the signed integer Int64.min_int + input - Nativeint.max_int - 1.

  • raises Failure

    if the given string is not a valid representation of an integer, or if the integer represented exceeds the range of integers representable in type nativeint.

valof_string_opt : ``string-> ``nativeint option

Same as of_string, but return None instead of raising.

  • since 4.05
valto_string : ``nativeint-> string

Return the string representation of its argument, in decimal.

type t`` = nativeint

An alias for the type of native integers.

valcompare :t -> t -> int

The comparison function for native integers, with the same specification as Stdlib.compare. Along with the type t, this function compare allows the module Nativeint to be passed as argument to the functors Set.Make and Map.Make.

valunsigned_compare :t -> t -> int

Same as compare, except that arguments are interpreted as unsigned native integers.

  • since 4.08.0
valequal :t -> t -> bool

The equal function for native ints.

  • since 4.03.0
valmin :t -> t -> t

Return the smaller of the two arguments.

  • since 4.13.0
valmax :t -> t -> t

Return the greater of the two arguments.

  • since 4.13.0

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